/*
 * JBoss, Home of Professional Open Source
 * Copyright 2011, Red Hat, Inc. and individual contributors
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

package org.mobicents.protocols.ss7.cap.EsiBcsm;

import java.io.IOException;

import org.mobicents.protocols.asn.AsnException;
import org.mobicents.protocols.asn.AsnInputStream;
import org.mobicents.protocols.asn.AsnOutputStream;
import org.mobicents.protocols.asn.Tag;
import org.mobicents.protocols.ss7.cap.api.CAPException;
import org.mobicents.protocols.ss7.cap.api.CAPParsingComponentException;
import org.mobicents.protocols.ss7.cap.api.CAPParsingComponentExceptionReason;
import org.mobicents.protocols.ss7.cap.api.EsiBcsm.TNoAnswerSpecificInfo;
import org.mobicents.protocols.ss7.cap.api.isup.CalledPartyNumberCap;
import org.mobicents.protocols.ss7.cap.isup.CalledPartyNumberCapImpl;
import org.mobicents.protocols.ss7.cap.primitives.CAPAsnPrimitive;
import org.mobicents.protocols.ss7.map.api.MAPParsingComponentException;

/**
 * 
 * @author sergey vetyutnev
 * 
 */
public class TNoAnswerSpecificInfoImpl implements TNoAnswerSpecificInfo, CAPAsnPrimitive {

	public static final int _ID_callForwarded = 50;
	public static final int _ID_forwardingDestinationNumber = 52;

	public static final String _PrimitiveName = "TNoAnswerSpecificInfo";

	private boolean callForwarded;
	private CalledPartyNumberCap forwardingDestinationNumber;

	public TNoAnswerSpecificInfoImpl() {
	}

	public TNoAnswerSpecificInfoImpl(boolean callForwarded, CalledPartyNumberCap forwardingDestinationNumber) {
		this.callForwarded = callForwarded;
		this.forwardingDestinationNumber = forwardingDestinationNumber;
	}

	@Override
	public boolean getCallForwarded() {
		return callForwarded;
	}

	@Override
	public CalledPartyNumberCap getForwardingDestinationNumber() {
		return forwardingDestinationNumber;
	}

	@Override
	public int getTag() throws CAPException {
		return Tag.SEQUENCE;
	}

	@Override
	public int getTagClass() {
		return Tag.CLASS_UNIVERSAL;
	}

	@Override
	public boolean getIsPrimitive() {
		return false;
	}


	@Override
	public void decodeAll(AsnInputStream ansIS) throws CAPParsingComponentException {

		try {
			int length = ansIS.readLength();
			this._decode(ansIS, length);
		} catch (IOException e) {
			throw new CAPParsingComponentException("IOException when decoding " + _PrimitiveName + ": " + e.getMessage(), e,
					CAPParsingComponentExceptionReason.MistypedParameter);
		} catch (AsnException e) {
			throw new CAPParsingComponentException("AsnException when decoding " + _PrimitiveName + ": " + e.getMessage(), e,
					CAPParsingComponentExceptionReason.MistypedParameter);
		} catch (MAPParsingComponentException e) {
			throw new CAPParsingComponentException("MAPParsingComponentException when decoding " + _PrimitiveName + ": " + e.getMessage(), e,
					CAPParsingComponentExceptionReason.MistypedParameter);
		}
	}

	@Override
	public void decodeData(AsnInputStream ansIS, int length) throws CAPParsingComponentException {

		try {
			this._decode(ansIS, length);
		} catch (IOException e) {
			throw new CAPParsingComponentException("IOException when decoding " + _PrimitiveName + ": " + e.getMessage(), e,
					CAPParsingComponentExceptionReason.MistypedParameter);
		} catch (AsnException e) {
			throw new CAPParsingComponentException("AsnException when decoding " + _PrimitiveName + ": " + e.getMessage(), e,
					CAPParsingComponentExceptionReason.MistypedParameter);
		} catch (MAPParsingComponentException e) {
			throw new CAPParsingComponentException("MAPParsingComponentException when decoding " + _PrimitiveName + ": " + e.getMessage(), e,
					CAPParsingComponentExceptionReason.MistypedParameter);
		}
	}

	private void _decode(AsnInputStream ansIS, int length) throws CAPParsingComponentException, MAPParsingComponentException, IOException, AsnException {

		this.callForwarded = false;
		this.forwardingDestinationNumber = null;
		
		AsnInputStream ais = ansIS.readSequenceStreamData(length);
		while (true) {
			if (ais.available() == 0)
				break;

			int tag = ais.readTag();

			if (ais.getTagClass() == Tag.CLASS_CONTEXT_SPECIFIC) {
				switch (tag) {
				case _ID_callForwarded:
					ais.readNull();
					this.callForwarded = true;
					break;
				case _ID_forwardingDestinationNumber:
					this.forwardingDestinationNumber = new CalledPartyNumberCapImpl();
					((CalledPartyNumberCapImpl) this.forwardingDestinationNumber).decodeAll(ais);
					break;

				default:
					ais.advanceElement();
					break;
				}
			} else {
				ais.advanceElement();
			}
		}
	}

	@Override
	public void encodeAll(AsnOutputStream asnOs) throws CAPException {
		this.encodeAll(asnOs, Tag.CLASS_UNIVERSAL, Tag.SEQUENCE);
	}

	@Override
	public void encodeAll(AsnOutputStream asnOs, int tagClass, int tag) throws CAPException {

		try {
			asnOs.writeTag(tagClass, false, tag);
			int pos = asnOs.StartContentDefiniteLength();
			this.encodeData(asnOs);
			asnOs.FinalizeContent(pos);
		} catch (AsnException e) {
			throw new CAPException("AsnException when encoding " + _PrimitiveName + ": " + e.getMessage(), e);
		}
	}

	@Override
	public void encodeData(AsnOutputStream asnOs) throws CAPException {

		try {
			if (this.callForwarded)
				asnOs.writeNull(Tag.CLASS_CONTEXT_SPECIFIC, _ID_callForwarded);
			if (this.forwardingDestinationNumber != null)
				((CalledPartyNumberCapImpl) this.forwardingDestinationNumber).encodeAll(asnOs, Tag.CLASS_CONTEXT_SPECIFIC, _ID_forwardingDestinationNumber);
		} catch (IOException e) {
			throw new CAPException("IOException when encoding " + _PrimitiveName + ": " + e.getMessage(), e);
		} catch (AsnException e) {
			throw new CAPException("AsnException when encoding " + _PrimitiveName + ": " + e.getMessage(), e);
		}
	}

	@Override
	public String toString() {

		StringBuilder sb = new StringBuilder();
		sb.append(_PrimitiveName);
		sb.append(" [");

		if (this.callForwarded) {
			sb.append("callForwarded");
		}
		if (this.forwardingDestinationNumber != null) {
			sb.append(", forwardingDestinationNumber= [");
			sb.append(forwardingDestinationNumber);
			sb.append("]");
		}

		sb.append("]");

		return sb.toString();
	}
}

